diff --git a/include/libpldm/state_set.h b/include/libpldm/state_set.h
index a16e7aa81..1e7fee773 100644
--- a/include/libpldm/state_set.h
+++ b/include/libpldm/state_set.h
@@ -217,6 +217,7 @@ enum pldm_state_set_boot_progress_state_values {
 	PLDM_STATE_SET_BOOT_PROG_STATE_STARTING_OP_SYS = 21,
 	PLDM_STATE_SET_BOOT_PROG_STATE_BASE_BOARD_INITIALIZATION = 22,
 	PLDM_STATE_SET_BOOT_PROG_STATE_PRIMARY_PROC_INITIALIZATION = 26,
+	PLDM_STATE_SET_BOOT_PROG_STATE_OSSTART = 20,
 };
 
 /* @brief List of states for the System Power State set (ID 260).